Just under an hour later, the Oilers acquired goalie Ben Scrivens from the Los Angeles Kings in exchange for a third-round draft pick.
Scrivens, 27, posted a 7-5-4 record in 19 games with the Kings this season, as well as a 1.97 goals-against-average, a .931 save percentage and three shutouts.
The native of Spruce Grove, Alberta, has played in 51 career NHL regular-season games with the Toronto Maple Leafs and Kings, and has compiled a career-record of 18-19-6, to date, with a 2.54 GAA, a .917 save percentage and five shutouts.
Scrivens is in the final year of his current contract.
Dubnyk, 27, is in the final year of his contract and is scheduled to become an unrestricted free agent July 1.
He posted an 11-17-2 record with the Oilers this season, along with a 3.36 goals-against-average, a .894 save percentage and two shutouts.
Drafted 14th overall by the Oilers in the 2004 NHL Entry Draft, Dubnyk has played in 171 career NHL regular-season games, posting a record of 61-76-21 with eight shutouts, a career 2.88 goals-against-average and a .910 save percentage.
Hendricks, 32, has three-years remaining on his contract beyond this season at an annual salary cap hit of $1.85 million.
The antive of Blaine, Minnesota, registered two goals and two assists for four points, along with 54 penalty minutes, in 44 game with the Predators this season.
In 307 career NHL regular-season games with the Colorado Avalanche, Washington Capitals and Predators, Hendricks has accumulated 29 goals and 33 assists for 62 points, along with 419 penalty minutes.